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Old 24-03-2013, 01:23 PM
raymo
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raymo is offline
 
Join Date: Sep 2011
Location: margaret river, western australia
Posts: 6,070
any takers

Hi Gavcol, EtaCarina is quite large when the exposure is long enough
to show it all. It is a very interesting exercise to either take longer and
longer exposures ,and watch as more and more of it comes into view,
or stack increasingly large numbers of short exposures for a similar result.
The advantage of aperture is obvious when you consider that i can
get a slightly brighter image of E.Car. with almost no trace of star
trailing, with a single 8 second exposure @ 1600 iso with my 8" Newt.
happy imaging
raymo
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